LASER STARK SPECTRA OF $^{13}CH_{3}OH$ AT $311 \mu m$ AND $337\mu m$

Author Institution: Department of Physics, University of IdahoThe laser Stark spectra of $^{13}CH_{3}OH$ have been observed using the $311\mu m$ and the $337 \mu m$ line of the HCN Laser. Numerous families of absorptions have been observed for both $\pi$ and $\pi$ polarizations all the way up to 60,000 V/cm. The low field structure observed with the $311\mu m$ line is assigned to the $J_{k} = 15_{3}- 14_{2} A^{-} v_{t} = 0$ torsional state. One of the several prominent structures seen with the $337 \mu m$ line is tentatively identified as the $J_{k} = 22_{6} + 22_{5} E_{1} v_{t} = 0$ transition